| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oa | city | Pohnpei | Federated States of Micronesia | 6.92 | 158.31 | 0 | 5627 |
| Oarmoar | city | Pohnpei | Federated States of Micronesia | 6.94 | 158.17 | 830 | 9786 |
| Oaumoar | city | Pohnpei | Federated States of Micronesia | 6.94 | 158.17 | 830 | 9786 |
| Oaunoar | city | Pohnpei | Federated States of Micronesia | 6.94 | 158.17 | 830 | 9786 |
| Ohwa | city | Pohnpei | Federated States of Micronesia | 6.92 | 158.31 | 0 | 5627 |
| Onean | city | Pohnpei | Federated States of Micronesia | 6.82 | 158.28 | 85 | 8229 |
| Oumoar | city | Pohnpei | Federated States of Micronesia | 6.94 | 158.17 | 830 | 9786 |